<template>
  <div ref="echarts"></div>
</template>

<script>
import * as echarts from 'echarts'

export default {
  props: {
    isAxisChart: {
      type: Boolean,
      default: true
    },
    chartData: {
      type: Object,
      default() {
        return {
          xData:[],
          series
        }
      }
    }
  },
  watch: {
    chartData: {
      handler: function () {
        this.initCharts()
      },
      deep :true
    }
  },
  methods: {
    initCharts() {
      this.initChartData()
        if (this.echarts) {
          this.echarts.setOption(this.options)
        }else{
          this.echarts = echarts.init(this.$ref.echarts)
          this.echarts.setOption(this.options)
        }
      
    },
    initChartData() {
      if (this.isAxisChart) {
        this.axisOption.xAxis.data = this.chartData.xData
        this.axisOption.series = this.chartData.series
      } else {
        this.normalOption.series = this.chartData.series
      }
    }
  },
  data(){
    return {
      axisOption: {
        legend: {
          // 图例文字颜色
          textStyle: {
            color: "#333",
          },
        },
        grid: {
          left: "20%",
        },
        // 提示框
        tooltip: {
          trigger: "axis",
        },
        xAxis: {
          type: "category", // 类目轴
          data: [],
          axisLine: {
            lineStyle: {
              color: "#17b3a3",
            },
          },
          axisLabel: {
            interval: 0,
            color: "#333",
          },
        },
        yAxis: [
          {
            type: "value",
            axisLine: {
              lineStyle: {
                color: "#17b3a3",
              },
            },
          },
        ],
        color: ["#2ec7c9", "#b6a2de", "#5ab1ef", "#ffb980", "#d87a80", "#8d98b3"],
        series: [],
      },
      normalOption:{
        tooltip: {
          trigger: "item",
        },
        color: [
          "#0f78f4",
          "#dd536b",
          "#9462e5",
          "#a6a6a6",
          "#e1bb22",
          "#39c362",
          "#3ed1cf",
        ],
        series: [],
      },
      // 给个初始值null不然会报错
      echart:null
      }  
  },
  computed: {
    options () {
      return this.isAxisChart ? this.axisOption : this.normalOption
    }
  }
}
</script>
